Hair Follicle Drug Testing - Greenfields, PA

Employment, DOT, Court Ordered, Personal
Urine| Hair Follicle | Oral Fluid | Blood | ETG

With 30 testing centers in the Greenfields area, we offer drug and alcohol testing for employment, probation and DOT requirements. Additional services include DOT consortium enrollment, DNA Testing and background checks. Order your tests and services online or call (800) 221-4291.

30 Hair Drug Testing Centers in Greenfields

Minutes Away, Test Today

1665 State Hill Rd Berkshire Mall

1.50 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-4:30 PM✓ Walk-in with Electronic Donor Pass
1665 State Hill Rd Berkshire Mall
Wyomissing, PA 19610

2500 Bernville Rd

1.62 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-3:00 PM • Sat: 9:00 AM-11:00 AM✓ Walk-in with Electronic Donor Pass
2500 Bernville Rd
Reading, PA 19605

2001 State Hill Road, Suite 130

1.66 mi
🕑 Testing Hours: Mon–Fri: 6:30 AM-2:30 PM • Sat: 7:00 AM-11:00 AM✓ Walk-in with Electronic Donor Pass
2001 State Hill Road, Suite 130
Wyomissing, PA 19610

96 Commerce Dr Ste 113

1.90 mi
🕑 Testing Hours: M,W-F 10:00 AM-5:00 PM • T 10:00 AM-4:00 PM✓ Walk-in with Electronic Donor Pass
96 Commerce Dr Ste 113
Wyomissing, PA 19610

3050 N 5th Street Hwy,

2.08 mi
🕑 Testing Hours: Mon–Fri: 7:00 AM-11:00 AM & 11:50 AM-2:00 PM • Sat: 7:00 AM-11:00 AM✓ Walk-in with Electronic Donor Pass
3050 N 5th Street Hwy,
Reading, PA 19605

3225 N 5th Street Hwy Ste 4

2.76 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-6:00 PM✓ Walk-in with Electronic Donor Pass
3225 N 5th Street Hwy Ste 4
Reading, PA 19605

1114 Commons Blvd

2.87 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
1114 Commons Blvd
Reading, PA 19605

4201 Pottsville Pike

2.94 mi
🕑 Testing Hours: M-Sun: 8:00 AM-3:00 PM✓ Walk-in with Electronic Donor Pass
4201 Pottsville Pike
Reading, PA 19605

5001b Perkiomen Ave

3.10 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5001b Perkiomen Ave
Reading, PA 19606

520 E Lancaster Ave,

3.60 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
520 E Lancaster Ave,
Shillington, PA 19607

Walnut St

5.61 mi
🕑 Testing Hours: Mon–Fri: 7:00 AM-7:00 PM✓ Walk-in with Electronic Donor Pass
Walnut St
Reading, PA 19606

4400 Perkiomen Ave,

6.04 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4400 Perkiomen Ave,
Reading, PA 19606

321 N Furnace St,

10.25 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
321 N Furnace St,
Birdsboro, PA 19508

400-b South 4th Street,

13.12 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
400-b South 4th Street,
Hamburg, PA 19526

44 East Ave

14.85 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-12:00 PM✓ Walk-in with Electronic Donor Pass
44 East Ave
Strausstown, PA 19559

45 S Pine St

15.75 mi
🕑 Testing Hours: Mon–Fri: 7:00 AM-7:00 PM • Sat: 8:00 AM-6:00 PM • Sun: 1:00 PM-5:00 PM✓ Walk-in with Electronic Donor Pass
45 S Pine St
Elverson, PA 19520

446 N Reading Rd

16.00 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
446 N Reading Rd
Ephrata, PA 17522

112 N Reading Rd,

16.82 mi
🕑 Testing Hours: Mon–Fri: 6:30 AM-2:00 PM • Sat: 7:00 AM-10:30 AM✓ Walk-in with Electronic Donor Pass
112 N Reading Rd,
Ephrata, PA 17522

725 E Lincoln Ave,

16.91 mi
🕑 Testing Hours: Mon–Fri: 6:30 AM-1:30 PM • Sat: 7:00 AM-10:30 AM✓ Walk-in with Electronic Donor Pass
725 E Lincoln Ave,
Myerstown, PA 17067

1050 E Philadelphia Ave,

18.09 mi
🕑 Testing Hours: Mon–Fri: 6:00 AM-1:30 PM • Sat: 7:00 AM-11:30 AM✓ Walk-in with Electronic Donor Pass
1050 E Philadelphia Ave,
Gilbertsville, PA 19525

1323 Rt 100,

18.81 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1323 Rt 100,
Barto, PA 19504

435 S Kinzer Ave

18.92 mi
🕑 Testing Hours: M-Th 8:30 AM-4:30 PM • F 8:30 AM-12:30 PM✓ Walk-in with Electronic Donor Pass
435 S Kinzer Ave
New Holland, PA 17557

81 Robinson St Careplex Building

19.43 mi
🕑 Testing Hours: M-Th 7:30 AM-4:00 PM • F 7:30 AM-11:00 AM✓ Walk-in with Electronic Donor Pass
81 Robinson St Careplex Building
Pottstown, PA 19464

1600 E High St

19.93 mi
🕑 Testing Hours: M-Th 7:30 AM-4:00 PM • F 7:30 AM-11:00 AM✓ Walk-in with Electronic Donor Pass
1600 E High St
Pottstown, PA 19464

1569 Medical Dr,

20.04 mi
🕑 Testing Hours: Mon–Fri: 6:30 AM-3:00 PM • Sat: 8:00 AM-11:30 AM✓ Walk-in with Electronic Donor Pass
1569 Medical Dr,
Pottstown, PA 19464

2089 E High St

20.37 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2089 E High St
Pottstown, PA 19464

1120 Centre Tpke

20.61 mi
🕑 Testing Hours: Mon–Sat: 8:00 AM-8:00 PM • Sun: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
1120 Centre Tpke
Orwigsburg, PA 17961

4237 Oregon Pike

21.41 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-4:00 PM✓ Walk-in with Electronic Donor Pass
4237 Oregon Pike
Ephrata, PA 17522

6900 Hamilton Blvd Ste 145

22.84 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6900 Hamilton Blvd Ste 145
Trexlertown, PA 18087

227 S Route 100

23.16 mi
🕑 Testing Hours: Mon–Fri: 9:00 AM-6:00 PM • Sat: 8:00 AM-12:00 PM✓ Walk-in with Electronic Donor Pass
227 S Route 100
Allentown, PA 18106

Employment, Court Ordered, Probation, Family

Providing complete hair follicle drug screening in Greenfields, Pennsylvania, Accredited Drug Testing is your go-to for hair drug and alcohol tests. Our nationwide centers offer specialized hair testing for drugs, alcohol/ETG, and more personalized tests. Generally, 1.5 to 2 inches of head or body hair is needed for accurate analysis.

Increasingly, hair follicle tests are the preferred method for drug screening by employers, courts, and Substance Abuse professionals, owing to their extended detection period of up to 90 days and resistance to tampering. While excellent for long-term drug use detection, urine tests remain the top choice for identifying drug use in the five days preceding the test.

What it is, How it works

Hair analysis is now perceived as a potent method for detecting drug and alcohol consumption. Hair retains a long-term record of substances by embedding biomarkers within the fibers of the hair as it grows. When obtained close to the scalp, hair offers a detection window of up to about three months for identifying alcohol and drug use. Hair collection is straightforward, somewhat challenging to tamper with, and uncomplicated to transport.

A 1.5-inch segment consisting of roughly 200 hair strands (comparable to the size of a #2 pencil) closest to the scalp can yield 100mg of hair, which is the preferred quantity for testing and validation. For EtG, supplementary tests, and/or panels exceeding 10, a 150mg sample is advised. We suggest using a jeweler’s scale for weighing the specimen. In the absence of scalp hair, a similar quantity of body hair can be gathered. By head hair, we mean only scalp hair. Body hair pertains to all other kinds of hair (facial, axillary, etc.).

Process Summary

The laboratory analysis of a drug test encompasses four main steps: Accessioning, Screening, Extraction, and Confirmation.

Accessioning involves the initial processing of a sample within a lab’s database. This step ensures the sample was sealed and transported correctly, generates a random LAN (Laboratory Accessioning Number), and completes any extra data entry not available through an electronic chain of custody system.

Screening involves an initial rapid assessment for common drugs. While Screening serves as a cost-efficient approach to rule out drug use in most cases, a positive result needs confirmation for legal admissibility. Samples testing presumptively positive in Screening necessitate further verification.

When a sample shows presumptive positivity during Screening, additional hair is taken from the initial sample for Extraction. During Extraction, drugs are isolated from hair at a significantly lower concentration than with other methods (like urine or oral fluid), making hair drug analysis a challenging method to execute.

Confirmation of any positive Screening outcome is achieved through GC/MS, GC/MS/MS, or LC/MS/MS. Presumptive positive samples undergo washing before confirmation as appropriate. The laboratory process from Accessioning through to Confirmation is scrutinized under both the CAP (College of American Pathologists) Hair designation and compliance with ISO / IEC 17025 standards.

Benefits of hair drug analysis:

  • Extended detection period: Hair tests can reveal drug use for up to 90 days, in contrast to urine tests with shorter detection spans.
  • Reduced likelihood of evasion: It is exceedingly difficult to circumvent a hair drug test, ensuring more accurate outcomes.
  • Provides usage history: It can delineate a pattern of substance use over time, beyond merely recent consumption.

Drawbacks:

  • Inability to detect recent usage: Drugs become detectable in hair only after approximately 5-7 days.
  • Price: Hair tests tend to be more costly compared to other drug testing techniques.
  • Variability in outcomes: Aspects such as hair color and personal differences in hair growth can influence the drug metabolite concentration in hair.

Note: Commonly referred to as "hair follicle tests", the analysis actually examines the hair strand—not the follicle under the scalp.

Why Hair Follicle Testing Beats Urine Testing

In Greenfields, PA, the advantages of hair testing over traditional urine tests are profound. Hair follicle tests provide superior detection capabilities, capturing a comprehensive substance use profile. This method significantly outshines urinalysis by extending the detection window to up to 90 days, ensuring that any substance use doesn’t go unnoticed. Combining this extended period with high accuracy delivers reliability unachievable by urine tests.

Extended Detection Window

Hair follicle testing offers an extended detection window, covering drug use over a significant period—up to 90 days. In Greenfields, PA, employers gain valuable insights into the substance use history of employees or applicants, supporting informed hiring and retention decisions. This method delivers critical data that a shorter detection urinalysis cannot, ensuring a complete overview of past drug use.

Tamper-Resistant Testing Method

The tamper-resistant nature of hair follicle tests offers Greenfields, PA unmatchable protection against sample adulteration. Unlike traditional methods, hair testing minimizes fraudulent results, as it is difficult to alter or cheat. This reliability assures organizations and individuals that results are unquestionable, bolstering trust in drug testing processes by eliminating common complications found in other testing forms.

Convenient Nationwide Locations

Greenfields, PA benefits from conveniently located nationwide testing centers, allowing for seamless access to necessary drug testing services. Our widespread network ensures readiness to meet testing demands with ease, removing any hurdles between clients and the testing they require. This accessibility guarantees a hassle-free experience, reducing barriers to testing and bolstering timely and efficient service.

Simple, Confidential Process

Offering a straightforward and confidential process, drug testing in Greenfields, PA ensures client privacy and simplicity in every step. From ordering to receiving results, the process is designed to be user-friendly and discreet, alleviating concerns regarding handling and sensitivity of information. This ensures confidence in both service and security, making the testing process both secure and easy to execute.

Affordable, Fast Turnaround

Greenfields, PA enjoys competitive pricing and fast turnaround times with our hair follicle drug testing services. We prioritize affordability and efficiency, delivering excellent value across all company sizes. Quick responses mean peace of mind, providing critical information without delay, and our cost-effective approach ensures that your needs are met within budget, fostering trust and satisfaction.

Fast, Accurate, and Reliable Results

Greenfields, PA benefits from the fast and precise capabilities of hair follicle drug tests. Renowned for their accuracy, these tests deliver swift and reliable results, confirming substance use with precision. The efficacy of hair testing is unparalleled, providing prompt answers that empower individuals and organizations to make informed decisions quickly, ensuring confidence in the outcomes delivered.

Compliance and Peace of Mind for Employers

Employers in Greenfields, PA achieve compliance and peace of mind through hair follicle testing, adhering to strict drug-free policies while reducing legal risks. This method enhances workplace safety by ensuring that policies are up-to-date and enforced, minimizing potential disruption or liability. It fosters a secure and efficient working environment, promoting a commitment to safety and responsibility.

What's New In Hair Follicle Drug Testing according to the Hair Drug Testing Experts

With its multidisciplinary nature, hair testing brings together researchers, scientists, and experts from various domains to develop innovative techniques, explore new methodologies, and address emerging concerns, responding to the ever-evolving challenges of drug abuse, therapeutic drug monitoring, and environmental exposures to pollutants.

The joint meeting of the Society of Hair Testing (SoHT) and the Italian Group of Forensic Toxicologists (GTFI) was organized in Verona, June 8–10, 2022, and hosted by the Legal Medicine team of the Verona University Hospital, directed by Franco Tagliaro together with Federica Bortolotti and Rossella Gottardo.

It served as a prominent platform for knowledge exchange and collaboration, facilitating groundbreaking advancements in hair testing and analysis. In this special issue of Drug Testing and Analysis, we aim to showcase the remarkable manuscripts presented at this significant event, shedding light on the latest research and highlighting the future directions in this field.

Novel Analytical Techniques: The Verona meeting witnessed the unveiling of cutting-edge analytical techniques, offering enhanced sensitivity, selectivity, and accuracy for drug testing. Remarkable advancements in sample preparation, detection, and identification of drug compounds have been presented. The manuscripts in this section presented novel approaches, such as multianalyte methods and on-line preparation which can enable rapid analysis and improve thorough forensic investigations.

Biomarkers and Pharmacokinetics: The identification and validation of reliable biomarkers and pharmacokinetic studies are fundamental aspects of drug testing and analysis. The impact of hair treatments on the oxidation/decomposition of drugs in hair was also explored, as the long-term fate of drugs incorporated in the keratin matrix. Furthermore, the SoHT meeting in Verona featured research on the identification and quantification of alcohol abuse biomarkers, their stability, and their correlation with exposure and other biomarkers.

Forensic Applications and Interpretation: One of the vital objectives of hair testing is its application in forensic investigations and legal proceedings. The SoHT meeting in Verona emphasized the significance of rigorous interpretation of analytical results and the need for standardized protocols. Manuscripts in this section present advancements in forensic toxicology, and have explored the challenges posed by emerging designer drugs and strategies to combat their proliferation. The pitfalls encountered when the exogenous/endogenous nature of a substance is questioned were presented and discussed. The special issue presents also manuscripts that delve into the ethical implications of drug testing in drug facilitated sexual assaults.

Clinical Applications of hair testing are witnessed by the insight on environmental tobacco smoke exposure, assessed by hair analysis in a population of students and the study of in utero-exposure to drugs of abuse through neonatal hair analysis. Exposure to drugs was also important in cases of child abuse/neglect, when the clinical purpose of hair testing merge with its forensic applications.

The legal framework surrounding hair testing and the achievement of guidelines to ensure fairness, accuracy, and confidentiality in drug testing practices have also been discussed,and the SoHT consensus on general hair testing and testing for drugs of abuse was presented at the meeting and published as a Letter to the Editor.

In conclusion, the special issue of Drug Testing and Analysis, featuring manuscripts from the SoHT–GTFI meeting in Verona 2022, reflects the remarkable advancements achieved in this field. The manuscripts provide valuable insights into novel analytical techniques, biomarkers, pharmacokinetics, forensic applications, and ethical considerations. As we embrace these advancements, we pave the way for a safer, healthier society, where drug testing and analysis serve as powerful tools in protecting public health and maintaining integrity in various sectors. The research presented in this special issue will undoubtedly shape the future of drug testing and analysis, fostering collaboration and inspiring further innovation in this crucial area of scientific inquiry.


Greenfields Drug Testing

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Greenfields DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Greenfields, PA.

Greenfields Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Greenfields, PA.v

Greenfields Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Greenfields, PA locations—results you can trust, every time!

Greenfields Alcohol Testing

Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Greenfields, PA.

Greenfields Drug Testing Services

Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Greenfields, PA.

Greenfields 5 Panel Drug Test

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Greenfields 10 Panel Drug Test

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Greenfields On Site Drug Testing

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Greenfields DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Greenfields, PA drivers compliant and on the road with confidence.

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Frequently Asked Questions

A hair follicle drug test analyzes a small sample of hair to detect a history of drug use over time. Because drug metabolites are incorporated into hair as it grows, this method can show patterns of use instead of just recent exposure. It is frequently used for legal and court requirements, long-term monitoring, and high-trust workforce screening.
Standard hair drug testing typically reflects drug use over approximately a 90-day period, based on the length of hair collected at the time of testing. Longer hair can sometimes reflect a longer time frame, and extremely short hair can reduce that window.
Hair drug testing commonly screens for marijuana/THC, cocaine, opiates/opioids, amphetamines/methamphetamines, and PCP. In many cases, additional expanded panels may be requested to include other substances.
Yes. If the donor's head hair is too short or unavailable, body hair may be collected as an alternative. The collector will document the source of the sample. This allows testing even for individuals with recently cut or shaved head hair.
Yes. Hair drug testing is commonly used in court, probation, custody, and compliance matters because the collection process follows a documented chain of custody and the analysis is performed by a certified laboratory. Results are provided in a form that can be reviewed by legal and administrative authorities.
Yes. Individuals, parents, attorneys, employers, and probation programs can all request hair drug testing. A doctor's order is not required. Results are confidential and released only to the authorized requesting party.
Hair testing provides a longer look-back period than urine testing, making it useful when you need to demonstrate ongoing abstinence or identify repeated/recent substance use patterns over time rather than just recent exposure. It is frequently selected for legal, compliance, and custody-related documentation.
A small section of hair is cut by a trained collector in a discreet, controlled manner. The sample is sealed, documented, and sent to the laboratory under established chain-of-custody procedures so that the results can be defended if they are ever challenged.

Customer Reviews

Hassle Free Experience

It was easy to make the arrangements to get to someone in regards to renewing my DOT medical certificate. They took care of everything over the phone which made my experience hassle free. I will definitely be using them again and you should too.

Jim Raymond - 10/18/2024

This is by far the easiest

This is by far the easiest way to get my lab work ordered and paid for. The phone calls are short and to the point. They don’t try to push extra sales on you and when I walk in to the clinic I simply show my donor pass and with in a matter of minutes I’m done. I will continue to use ADT in the future.

Jason Jackson - 7/19/2025

Fantastic Experience

Fantastic experience from the beginning. Jocelyn was very helpful to me as someone who doesn’t have much experience in needing a test. They were very helpful and walked me through the entire process start to finish. Thank you ADT!

Riley Wilson - 2/18/2025

Accredited has been wonderful to work with!

Accredited has been wonderful to work with! My court ordered tests are on a very strange schedule but every time I call, they are quick to schedule me and are always able to find a location that works for where I’m at and when! Thank you for making this rather undesirable situation less stressful and efficient.

Madison Sanderford - 8/19/2024

Smooth and Seamless

I use their service for new hire and DOT employee's. Spoke with Taisha Walker this morning, and she was very helpful. She made the process smooth and seamless.

Christina Galdos - 3/9/2025

Explained everything so no questions

Torin was great. Explained everything so no questions

Tony Lombardo - 4/18/2025

I love the customer service

I love the customer service. The lady was patient enough to help me book my appointment with ease and ensuring I get the location that's best for me. Keep up the good work!

Elizabeth Chiaka - 9/19/2024

Quick, knowledgeable and courteous

Quick, knowledgeable and courteous Janelle worked diligently to support me. I am recommending their services to anyone looking.

Greensboro Joseph - 11/19/2024

A very nice company

A very nice company of expertise. The staff will go above to help you out of your situation in a timely matter 👏

Tam Jack - 2/19/2025

Really Helpful

I am just really happy to see that the location near me still offers hair follicle tests!! They are really helpful when any false positives happen, waiting on my results. Hope they come fast!

Kali Collins - 1/16/2025


(800) 221-4291